Installing Louvers; Typical Installation Methods - Daikin ARQ Installation And Maintenance Manual

Figure 18: The 21⅞" (556mm) deep full adapter back unit
with closed refrigerant pipe chase, ducted with top Intake
Window Sash
Louver

Installing Louvers

Typical Installation Methods

If the fresh air opening has not yet been made, see Figure
10 on page 10 through Figure 17 for the recommended
locations and the job-specific plans for the exact location.
Follow local codes.
Cut the wall opening so that it is slightly larger than the louver
being installed. For dimensions, see Table 2. If the opening is
already there, measure to be sure there is a minimum of 3/8"
(9mm) clearance around all sides. For masonry installations, a
lintel must be installed above all louvers.
In thick wall applications, the portion of the wall between the
louver and the unit is the outside air plenum. Line this plenum
area with 3/8" (9 mm) mortar or other suitable material. In
some applications, the job specifications require a metal sleeve
connection between the louver and the unit. If using such a
sleeve, properly caulk it to ensure a weather-tight seal. This is
Table 2: Recommended wall openings for louvers
Recommended Wall Openings For Wall
B C
48" (1219) 51" (1295)
60" (1524) 63" (1600)
72" (1829) 75" (1905)
IM 1083-3
Goose Neck Insulated
Duct (by others)
Duct Collar (by Daikin)
Unit Refrigerant Piping
Field Supplied
Water Piping
Floor Line
Louvers
Length Height
48½" (1232) 10⅞" (267)
60½" (1537) 10⅞" (267)
72½" (1842) 19⅞" (495)
critical in preventing freeze-ups, cold drafts, and air infiltration.
Be sure the wall is smooth, square, and provides a suitable
mating surface.
Before setting the louver, construct a sloping, sealed cement
mortar base to drain unwanted moisture to the outside, (see
Figure 19). Be sure the mortar base is 1" (25mm) thick at the
unit and tapers toward the louver. The mortar at the unit also
acts as a backing against which the open cell gasket of the unit
itself can seal. This is critical in preventing water leaks and air
leaks under the unit. Be sure the sealed cement mortar base is
smooth and flush with the interior wall.
If it is not possible to construct a sloping mortar base, then
field-supplied flashing is required. See Figure 20 on page
13. The flashing should terminate flush with the exterior
of the building. Place a bead of caulk under the flashing to
prevent moisture from wicking back to the unit. Do not caulk
the joint between the louver and the flashing. This joint is
designed to let unwanted moisture escape.
Figure 19: Typical louver installation with sloping sealed
cement mortar base
Louver
No
Caulk
Maximum Number of VentiMatic Shutters
Which Can Be Mounted On Standard Louver
24" 36" Shutter
2
1
0
12
Wall
Unit
Sealed Cement
Mortar;
Pitch Away
From Unit
Unit Gasket
1" (25mm)
Floor
VentiMatic Shutter(s) Air Capacity
Maximum
cfm
0 1000
1 1250
2 1500
www.DaikinApplied.com
L/s
472
590
708